@misc{indiciaecddb548d889d,
  title = {Synchronism of the Siberian Traps and the Permian-Triassic boundary},
  author = {I.H. Campbell and Gerald K. Czamanske and V.A. Fedorenko and R.I. Hill and V. Stepanov},
  year = {1992},
  doi = {10.1126/science.258.5089.1760},
  url = {https://pubs.usgs.gov/publication/70016825},
  note = {Source identifier: 70016825}
}